Su Wanning, a 21st century performance management expert, traveled through time and became a deep palace queen. She originally wanted to use modern KPIs to rectify the Sixth Palace and implement reforms, but she did not know that her rising reputation had touched the emperor's most sensitive nerve. On the surface, the emperor praised her for her virtuousness, but in reality, he was guarding her everywhere and secretly restricting her. He was afraid that the queen's outstanding achievements would overwhelm the emperor, and he was even more afraid that his relatives would become powerful and the country would change. Faced with the pressure from the Queen Mother, the calculations of the concubines, and the alignment of the courtiers, Su Wanning had to reform the inner court while dealing with the emperor who was on the opposite side. This is not only a battle for survival in the harem, but also the ultimate stretch of power and trust.